Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
JEE Main & Advanced
Physics
Current Electricity, Charging & Discharging Of Capacitors / वर्तमान बिजली, चार्ज और कैपेसिटर का निर
Question Bank
Kirchhoffs Law Cells
question_answer
The e.m.f. of a cell is E volts and internal resistance is \[r\] ohm. The resistance in external circuit is also\[r\] ohm. The p.d. across the cell will be [CPMT 1985; NCERT 1973]
A) E/2
B) 2E
C) 4E
D) E/4
Correct Answer:
A
Solution :
Since both the resistors are same, therefore potential difference \[=V+V=E\] Þ \[V=\frac{E}{2}\]